package com.heima.wemedia.service.impl;


import com.alibaba.fastjson.JSONArray;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.heima.apis.article.IArticleClient;
import com.heima.common.aliyun.GreenImageScan;
import com.heima.common.aliyun.GreenTextScan;
import com.heima.common.tess4j.Tess4jClient;
import com.heima.file.service.FileStorageService;
import com.heima.model.article.dtos.ArticleDto;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.wemedia.pojos.WmChannel;
import com.heima.model.wemedia.pojos.WmNews;
import com.heima.model.wemedia.pojos.WmSensitive;
import com.heima.model.wemedia.pojos.WmUser;
import com.heima.utils.common.SensitiveWordUtil;
import com.heima.wemedia.mapper.WmChannelMapper;
import com.heima.wemedia.mapper.WmNewsMapper;
import com.heima.wemedia.mapper.WmSensitiveMapper;
import com.heima.wemedia.mapper.WmUserMapper;
import com.heima.wemedia.service.WmChannelService;
import com.heima.wemedia.service.WmNewsAutoScanService;
import com.sun.org.apache.bcel.internal.generic.LNEG;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.scheduling.annotation.Async;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.*;
import java.util.stream.Collectors;

/**
 * <p>
 *
 * </p>
 *
 * @author lzt
 * @version 1.0
 * @since 2024/4/12 下午12:18
 */
@Slf4j
@RestController
@Transactional
public class WmNewsAutoScanServiceImpl implements WmNewsAutoScanService {

    @Autowired
    private WmNewsMapper wmNewsMapper;

    @Autowired
    private GreenTextScan greenTextScan;
    @Autowired
    private WmUserMapper wmUserMapper;

    /**
     * 修改文章内容
     *
     * @param wmNews
     * @param status
     * @param reason
     */
    private void updateWmNews(WmNews wmNews, short status, String reason) {
        wmNews.setStatus(status);
        wmNews.setReason(reason);
        wmNewsMapper.updateById(wmNews);
    }

    @Override
    @Async // 表明当前方法是一个异步方法
    public void autoScanWmNews(Integer id) {
        // 1. 查询自媒体文章
        WmNews wmNews = wmNewsMapper.selectById(id);
        if (wmNews == null) {
            throw new RuntimeException("WmNewsAutoScanServiceImpl-文章不存在");

        }

        // 从内容中提取村文本内容和图片
        Map<String, Object> textAndImages = handleTextAndImages(wmNews);


        // 自管理的敏感词过滤
        boolean isSensitive = handleSensitiveScan((String) textAndImages.get("content"), wmNews);
        if (!isSensitive) return;

        // 2.审核文本内容 阿里云接口
//        boolean isTextScan = handleTextScan((String) textAndImages.get("content"), wmNews);
//        if (!isTextScan) return;
//
//        // 3. 审核图片  阿里云接口
        boolean isImage = handleImageScan((List<String>) textAndImages.get("images"), wmNews);
        if (!isImage) return;

        // 审核成功  保存app端的相关的文章数据
        ResponseResult responseResult = saveAppArticle(wmNews);
        log.info("返回参数为：{}",responseResult.getCode());
        if (!responseResult.getCode().equals(200)) {
            log.error(responseResult.getData().toString());
            throw new RuntimeException("WmNewsAutoScanServiceImpl-文章审核，保存app端相关文章数据失败");
        }
        //回填article_id
        wmNews.setArticleId((Long) responseResult.getData());
        updateWmNews(wmNews, (short) 9, "审核成功");

    }

    @Autowired
    private WmSensitiveMapper wmSensitiveMapper;

    /**
     * 过滤敏感词
     *
     * @param content
     * @param wmNews
     * @return
     */
    private boolean handleSensitiveScan(String content, WmNews wmNews) {

        boolean flag = true;

        // 获取所有的敏感词
        List<WmSensitive> wmSensitives = wmSensitiveMapper.selectList(Wrappers.<WmSensitive>lambdaQuery().select(WmSensitive::getSensitives));
        List<String> sensititveList = wmSensitives.stream().map(WmSensitive::getSensitives).collect(Collectors.toList());

        // 初始化敏感词库
        SensitiveWordUtil.initMap(sensititveList);

        // 查看文章中是否包含铭感词
        Map<String, Integer> map = SensitiveWordUtil.matchWords(content);
        if (map.size() > 0) {
            updateWmNews(wmNews, (short) 2, "当前文章中存在违规内容" + map);
            flag = false;
        }
        return flag;

    }

    @Autowired
    private IArticleClient articleClient;

    @Autowired
    private WmChannelMapper wmChannelMapper;

    /**
     * 保存app端相关的文章数据
     *
     * @param wmNews
     */
    public ResponseResult saveAppArticle(WmNews wmNews) {

        ArticleDto dto = new ArticleDto();
        // 属性的拷贝
        BeanUtils.copyProperties(wmNews, dto);
        //文章的布局
        dto.setLayout(wmNews.getType());
        // 频道
        WmChannel wmChannel = wmChannelMapper.selectById(wmNews.getChannelId());
        if (wmChannel != null) {
            dto.setChannelName(wmChannel.getName());
        }

        //作者
        dto.setAuthorId(wmNews.getUserId().longValue());
        WmUser wmUser = wmUserMapper.selectById(wmNews.getUserId());
        if (wmUser != null) {
            dto.setAuthorName(wmUser.getName());
        }

        // 设置文章id
        if (wmNews.getArticleId() != null) {
            dto.setId(wmNews.getArticleId());
        }
        dto.setCreatedTime(new Date());

        return articleClient.saveArticle(dto);

    }

    @Autowired
    private FileStorageService fileStorageService;

    @Autowired
    private GreenImageScan greenImageScan;

    @Resource
    private Tess4jClient tess4jClient;

    /**
     * 审核图片
     *
     * @param images
     * @param wmNews
     * @return
     */
    private boolean handleImageScan(List<String> images, WmNews wmNews) {
        boolean flag = true;

        if (images == null || images.size() == 0) {
            return flag;
        }

        // 下载图片 minIO
        // 图片去重
        images = images.stream().distinct().collect(Collectors.toList());

        ArrayList<byte[]> imageList = new ArrayList<>();

        try {
            for (String image : images) {
                byte[] bytes = fileStorageService.downLoadFile(image);

                // byte[] 转换为bufferedImage
                ByteArrayInputStream in = new ByteArrayInputStream(bytes);
                BufferedImage bufferedImage = ImageIO.read(in);

                // 图片识别
                String result = tess4jClient.doOCR(bufferedImage);
                // 过滤文字
                boolean isSensitive = handleSensitiveScan(result, wmNews);
                if(!isSensitive) {
                    return isSensitive;
                }
                imageList.add(bytes);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        // 审核图片
        try {
//            Map map = greenImageScan.imageScan(imageList);
//            if (map != null) {
//                // 审核失败
//                if (map.get("suggestion").equals("block")) {
//                    flag = false;
//                    updateWmNews(wmNews, (short) 2, "当前图片存在违规内容");
//                }
//
//                // 不确定信息 需要人工审核
//                if (map.get("suggestion").equals("review")) {
//                    flag = false;
//                    updateWmNews(wmNews, (short) 3, "当前图片存在不确定内容");
//                }
//            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }

        return flag;
    }

    /**
     * 审核村文本内容
     *
     * @param content
     * @param wmNews
     * @return
     */
    private boolean handleTextScan(String content, WmNews wmNews) {

        boolean flag = true;

        if ((wmNews.getTitle() + content).isEmpty()) {
            return flag;
        }
        try {
            Map map = greenTextScan.greeTextScan(wmNews.getTitle() + "-" + content);
            if (map != null) {
                // s审核失败
                if (map.get("suggestion").equals("block")) {
                    flag = false;
                    updateWmNews(wmNews, (short) 2, "当前文章存在违规内容");
                }

                // 不确定信息 需要人工审核
                if (map.get("suggestion").equals("review")) {
                    flag = false;
                    updateWmNews(wmNews, (short) 3, "当前文章存在不确定内容");
                }
            }
        } catch (Exception e) {
            flag = false;
            e.printStackTrace();
        }
        return flag;

    }

    /**
     * 从内容中提取村文本内容和图片
     *
     * @param wmNews
     * @return
     */
    private Map<String, Object> handleTextAndImages(WmNews wmNews) {

        // 存储纯文本内容
        StringBuilder stringBuffer = new StringBuilder();
        ArrayList<String> images = new ArrayList<>();

        // 1.从自媒体文章的内容中提取文本图片
        if (StringUtils.isNotBlank(wmNews.getContent())) {
            List<Map> maps = JSONArray.parseArray(wmNews.getContent(), Map.class);
            for (Map map : maps) {
                if (map.get("type").equals("text")) {
                    stringBuffer.append(map.get("value"));
                }

                if (map.get("type").equals("image")) {
                    images.add((String) map.get("value"));
                }
            }
        }

        // 2.提取文章的封面图片
        if (StringUtils.isNotBlank(wmNews.getImages())) {
            String[] split = wmNews.getImages().split(",");
            images.addAll(Arrays.asList(split));
        }

        HashMap<String, Object> resultMap = new HashMap<>();
        resultMap.put("content", stringBuffer.toString());
        resultMap.put("images", images);
        return resultMap;
    }


}
